The trilogy of life usually refers to the three different stages of human life: 1. The newborn stage: This is the first stage of human life, usually a few days to a few weeks after childbirth. At this stage, the baby's main task is to survive and meet basic physiological needs such as feeding, defecation, and breathing. 2. Child stage: This is the second stage of human life, usually after infancy, between one to three years after birth. At this stage, children begin to learn how to adapt to the environment, develop social skills and cognitive abilities, and gradually grow into independent people. 3. Adult stage: This is the third stage of human life, usually after puberty, between four to six years after birth. At this stage, humans begin to face various life challenges such as economic, social and cultural pressures and gradually mature to seek personal development and self-realization.